Sectional load-shifting delivery-vehicle.



G. F, HUMAN, secmrm LOAD Smm@ DELIVERY VEHICLE.

APPLICATION FILED HGV. 29, 1915 ,288,175 Patented Dec. 17, w18.

UNTED SATB A nien.

SECTIONL LOAD-SHIFTING DELIVERY-VEHICLE.

Specication of Letters Patent.

Application led November 29, 1915.

To @ZZ cli/wm t may concern e it known that I, GEORGE F. PITTMAN,

a citizen of the United States, residing at Los Angeles, in the county of Los Angeles and State of California, have invented a new and useful Sectional Load-Shifting Delivery-Vehicle, of which the following is a specification.

This invention relates 'to delivery wagons, for delivering packages or parcels of dry goods, 'groceries and all analogous articles.

An object of the invention is to increase the accessibility of the packages to the delivery man, to reduce the labors of the delivery man and to increase the convenience with which he may select and obtain the appropriate parcels from the load at the different places of delivery.

The accompanying drawings illustrate the invention in two of the forms of embodiment at present contemplated.

Figure l is a fragmental perspective vievvr of a delivery wagon constructed in accordance with this invention and unloaded. Parts are broken away to expose parts that would otherwise be hidden.

Fig. 2 is a cross section of the form shown in Fig. l.

Fig. 3 is a broken longitudinal sectional elevation of the invention as constructed for gravity shifting of the load.

Fig. 4t is a fragmental cross sectional View on line indicated at Fig. 3.

Referring first to the form shown in Fig. l, the telcscoping sectional receptacles or load carriers l, 2 are mounted upon a. chassis or frame 3; lthe load receptacle oi carrier l being stationary relative to said frame and the load receptacle or carrier 2 being located within the stationary receptacle and being shiftable lengthwise therein. Each of said carriers is adapted to carry a portion or division of the load, not shown, and the telescoping section -2 in connection with the frame and stationary section l is adapted and arranged to allow the undelivered sectional portion or division of the load carried by said carrier 2 to be shifted into and out of the space vacated by the delivery of the initial portion of the load which has been removed and delivered from the carrier l.

A track is provided along which the shiftable carrier can be run to any position from the front end of the stationary load carrier to the rear end thereof, or vice versa; that is Patented Dec. 17, i918. Serial No. 64,166.

to say, into and out of the position or space at was occupied by the load of the stationary carrier before the delivery of such portion.

Such track may be variously formed and anti-friction means may be provided to fa.- cilitate the travel of the shiftable carrier.

4; indicates rollers forming an anti-friction track under the floor of the shiftable section 2; 5 indicates anti-friction rollers attached to and under the bottom of the shifting or telescoping section 2, at the rear thereof; 6 indicates rails alined with the roller tracks t and attached along the bottom of the fixed receptacle l to receive and support the anti-friction rollers of the shifting section; 7 indicates anti-friction rollers along the sides of the fixed section l or stationary box to support the lateral thrust of the telescoping or shifting section 2.

Longitudinal parallel racks 9 are secured to the shiftable section 2 under the bottom thereof, and pinions lli-secured to a shaft 1l, the bearings of which are in fixed relation to the frame 3`are in engagement with said racks. In this instance the shaft ll protrudes through holes, not shown, in the sides of the angle rails 6, and a crank l2 is provided for turning' the shaft and the pinions.

In practical operation, when the delivery man has delivered the portion of the routed load carried by the rear fixed section or carrier l, he will then operate `the crank l2 to shift the shiftable or telescoping section 2 back into the space in section l vacated by the delivered portion of the load.

lV hen the second or shiftable section 2 is unloaded thc delivery man may then shift the section into the position shown in Fig. l when the vehicle is ready to receive another load.

ln the form shown in Figs. 3 and 4 the shiftable section or carrier 13 is carried by anti-friction rollers 14C that run on an inclined track l5. A latch 16 engaging the stop or notch 17 on the fixed section 18 holds the shiftable section 18 in place until it is desired to shift the load thereof into the fixed section 18. The track l5 in this instance extends along the vehicle chassis or frame 19 from end to end thereof and antifriction rollers are xed to the bottom of the shiftable carrier.

The latch 16 as well as the rack and pinion as shown, serves to hold the shiftable section or load-carrier in the initial load-receiving position shown in Figs. 1 and 3 respectively, and it is understood that the track may be inclined in the form shown in Fig. 1 as well as that shown in Fig. 3, and that any means for operating either of the shftable carriers shown in the two views may be employed without departing from the spirit of the invention.

lWhere the load in the forward part of the vehicle is made vup of heavy packages, as bags of sugar, cases of canned goods, or the like, the labor of carrying the parcels back over the rear half 0f the vehicle bed as in the prior art, is very great and an object of this invention is to do away with such labor.

This invention is particularly labor saving when embodied in heavy delivery trucks where, for instance, the loady may be of six tons more or less in weight, and where the vehicle bed is about fourteen feet long so that when the rear half of the load has been delivered, the delivery man mustv carry each package a distance of seven feet more or less to the tail gate; while with this invention the delivery man can usually just swing the bag of sugar or other heavy package around from its resting place to the tail gate from which he can remove it when he is on the ground.

ln the forms shown in both views, the load carriers are open ended; both of the load carriers being open in the same direction; that is to say, rearwardly, so that the exit a for the parcels is at the rear in both forms shown.

l do not limit the construction, however, to the specic forms shown.

I claim 1. ln a. delivery vehicle, the combination with a frame, of a stationary box upon the frame; antifriction tracks comprising rollers, attached to and upon the bottom of the box, and extending longitudinally from the front end of the box; rails attached to the bottom and alined respectively with the tracks and extending therefrom to the rear end of the box; a second box longitudinally movable upon the antifriction tracks in the stationary box; antifriction rollers attached to and under the bottom of the second box at the rear thereof and adapted to engage the rails; and antifriction rollers along the sides of and within the stationary box for preventing lateral movement of the second box within the stationary box.

'2. ln a delivery vehicle, the combination with a frame, of a stationary box upon the frame; antifriction tracks comprising roll ers, attached to and upon the bottom of the box, and extending.longitudinally from the front end of the box; rails attached to the bottom and alined respectively with the tracks and extending therefrom to the rear end of the box; a second box longitudinally movable upon the antifriction tracks in the stationary box; antifrict-ion rollers attached to and under the bottom` of the second box at the rear thereof and adapted toengage the rails; antifriction rollers along the sides of and within the stationary box for preventing lateral movement of the second box within the stationary box; longitudinal racks attached to and under the bottom of the second box and between the antifriction tracks; a pinion in engagementV with each of the respective racks; a shaft for the pinions; bearings attached to the frame for supporting the shaftand means shaft.

ln testimony whereof, I have hereunto set my hand at Los Angeles, California, this '22d day of November, 1915.

GEORGE l?. PITTMAN.

Witness:

JAMES l. Towxsnnn.

Gopes cf this patent may be obtained for five cents each, by adxressng the Commissioner of Patents,

Washington, D. C.

for rotating the 

